CN101708659B - Mold for fiber reinforced composite dot matrix core board and wet method preparation process - Google Patents
Mold for fiber reinforced composite dot matrix core board and wet method preparation process Download PDFInfo
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- CN101708659B CN101708659B CN2009103091533A CN200910309153A CN101708659B CN 101708659 B CN101708659 B CN 101708659B CN 2009103091533 A CN2009103091533 A CN 2009103091533A CN 200910309153 A CN200910309153 A CN 200910309153A CN 101708659 B CN101708659 B CN 101708659B
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Abstract
The invention provides a fiber reinforced composite dot matrix core board mold and a wet method preparation process and relates to a mold and a wet process preparation process; the invention solves the problems that at present, no mold can manufacture the fiber reinforced composite dot matrix core board specially and no wet method preparation process can prepare the fiber reinforced composite dot matrix core board by utilizing the mold; a plurality of mold monomers are tiled at interval in an upright-inverting way to form a panel shape, and a plurality of the mold monomers are arranged between the two fixing bars; the preparation process comprises the following steps: step I: mold processing; step II: mold fixation; step III: fiber column rolling; step IV: fiber spreading and pre-impregnating; step V: pressurizing and curing; step VI: demolding. The fiber reinforced composite dot matrix core board mold has simple structure, low cost and convenient operation; the fiber reinforced composite dot matrix core board prepared by the wet method preparation process has higher specific strength and specific stiffness compared with the traditional metal dot matrix core board.
Description
Technical field
The present invention relates to a kind of mould of fibrous composite dot-matrix sandwich panel and utilize this mould to prepare the technology of fibrous composite dot-matrix sandwich panel.
Background technology
Fibre reinforced composites are compared with metal material, have higher specific strength and specific stiffness.The material major part that existing research truss core plate structure is used all is a metal material, and its preparation method is for based on the net on the metal wire knitted technology basis being laminate point soldering method, full form casting process and based on rolling on the micro-contact printing technical foundation-electroplate welding procedure.The existing metal material dot-matrix sandwich panel difficulty that is shaped, and composite dot-matrix sandwich panel is compared with the traditional metal dot-matrix sandwich panel and had higher specific strength, specific stiffness, easier moulding and have stronger designability.But, do not have to make the mould of fiber reinforced composite dot matrix core board specially and utilize this mould to prepare the wet processing of fiber reinforced composite dot matrix core board at present.
Summary of the invention
The objective of the invention is does not have specially to make the mould of fiber reinforced composite dot matrix core board and utilize this mould prepare the problem of the wet processing of fiber reinforced composite dot matrix core board at present, and then a kind of mould and wet method preparation process of fiber reinforced composite dot matrix core board are provided for solving.
The mould of fiber reinforced composite dot matrix core board of the present invention comprises a plurality of mold monomers and two fixed strips; The cross section of each mold monomers is non-isosceles trapezoid; Have on the inclined-plane of each mold monomers and many first semi-circular through hole and first semi-circular through hole are connected with the upper and lower surfaces of mold monomers; Every pair first semi-circular through hole is the splayed setting; Many center lines to first semi-circular through hole all equate with horizontal angle, have second semi-circular through hole with every pair first semi-circular through hole corresponding position on another inclined-plane of each mold monomers, the plane that the center line of second semi-circular through hole and the line of symmetry of corresponding a pair of first semi-circular through hole constitute and the transverse cross-section parallel setting of mold monomers; The alternate positively and invertedly tiling of a plurality of mold monomers is provided with the formation tabular; Many a plurality of second semi-circular through hole that first semi-circular through hole is formed on two many to first manhole, adjacent mold monomers on two adjacent mold monomers form a plurality of second manholes, and first manhole is identical with the diameter of second manhole; A plurality of mold monomers are arranged between two fixed strips, and the material of mold monomers is a silicon rubber.
Preparation fiber reinforced composite dot matrix core board wet processing of the present invention is realized according to following steps:
Step 4, lay down fibre prepreg: at the upper and lower surfaces lay down fibre prepreg of mould; The fibre columns of in process of deployment, the mould upper and lower surfaces being exposed is rived to both sides along the fibre columns length direction; The fibre columns of riving is embedded in the prepreg of mould upper and lower surfaces, forms the fiber reinforced composite dot matrix core board base;
Step 5, products solidifying: fiber reinforced composite dot matrix core board base and mould are placed on heating cure on the hydraulic press; The top and bottom of fiber prepreg and the pressure surface up and down of hydraulic press are fully contacted; Solidification temperature is 130～140 ℃, and pressure hold time is 2.5～3.5 hours;
Step 6, the demoulding: pull down anchor clamps, then each mold monomers is extracted out along its length, promptly make fibre reinforced composites tetrahedron dot-matrix sandwich panel.
The invention has the beneficial effects as follows: the mould of fiber reinforced composite dot matrix core board of the present invention adopts a plurality of silicon rubber mould monomer tilings that the formation tabular is set; And it is many to first manhole that many on two adjacent mold monomers form first semi-circular through hole; A plurality of second semi-circular through hole on two adjacent mold monomers form a plurality of second manholes; Can produce fiber reinforced composite dot matrix core board, the mould of fiber reinforced composite dot matrix core board of the present invention simple in structure, with low cost, easy to operate; Preparation fiber reinforced composite dot matrix core board wet processing of the present invention is according to the characteristics of the easy moulding of fibre reinforced composites; The fibre columns of in process of deployment, the mould upper and lower surfaces being exposed is rived to both sides along the fibre columns length direction; The fibre columns of riving is embedded in the prepreg of mould upper and lower surfaces; The fibre columns that the cloth that the mould upper and lower surfaces is laid is arranged through lattice structure fixes as one; The fiber reinforced composite dot matrix core board that makes is compared with the traditional metal dot-matrix sandwich panel, has higher specific strength and specific stiffness.
Description of drawings
The stereogram of the mould of Fig. 1 fiber reinforced composite dot matrix core board of the present invention, Fig. 2 are the stereograms of mold monomers of the present invention.
The specific embodiment
The specific embodiment one: shown in Fig. 1～2; The mould of the fiber reinforced composite dot matrix core board of this embodiment comprises a plurality of mold monomers 1 and two fixed strips 2; The cross section of each mold monomers 1 is non-isosceles trapezoid; Have on the inclined-plane of each mold monomers 1 and many first semi-circular through hole 1-1 and the first semi-circular through hole 1-1 are connected with the upper and lower surfaces of mold monomers 1; Every couple first semi-circular through hole 1-1 is the splayed setting; Many center lines to the first semi-circular through hole 1-1 all equate with horizontal angle, have the second semi-circular through hole 1-2 with every pair first semi-circular through hole 1-1 corresponding position on another inclined-plane of each mold monomers 1, the plane that the center line of the second semi-circular through hole 1-2 and the line of symmetry of the corresponding a pair of first semi-circular through hole 1-1 constitute and the transverse cross-section parallel setting of mold monomers 1; The alternate positively and invertedly tiling of a plurality of mold monomers 1 is provided with the formation tabular; Many a plurality of second semi-circular through hole 1-2 that the first semi-circular through hole 1-1 is formed on two many to the first manhole 1-1-1, adjacent mold monomers 1 on two adjacent mold monomers 1 form a plurality of second manhole 1-21, and the first manhole 1-1-1 is identical with the diameter of the second manhole 1-2-1; A plurality of mold monomers 1 are arranged between two fixed strips 2, and the material of mold monomers 1 is a silicon rubber.
The specific embodiment two: as shown in Figure 1; The said mould of this embodiment comprises that also a plurality of cross sections are circular hard metal bar 3; The center that each mold monomers 1 goes up along its length has the 3rd manhole 1-3, is fixed with the hard metal bar 3 of a circle in the 3rd manhole 1-3 on each mold monomers 1.So design can prevent that mold monomers 1 is out of shape along its length, plays the effect of skeleton.
Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: as shown in Figure 1, the fiber reinforced composite dot matrix core board wet method preparation process step of this embodiment is following:
Step 4, lay down fibre prepreg: at the upper and lower surfaces lay down fibre prepreg of mould; The fibre columns of in process of deployment, the mould upper and lower surfaces being exposed is rived to both sides along the fibre columns length direction; The fibre columns of riving is embedded in the prepreg of mould upper and lower surfaces, forms the fiber reinforced composite dot matrix core board base;
Step 5, products solidifying: fiber reinforced composite dot matrix core board base and mould are placed on heating cure on the hydraulic press; The top and bottom of fiber prepreg and the pressure surface up and down of hydraulic press are fully contacted; Solidification temperature is 130～140 ℃, and pressure hold time is 2.5～3.5 hours;
Step 6, the demoulding: pull down anchor clamps, then each mold monomers 1 is extracted out along its length, promptly make fibre reinforced composites tetrahedron dot-matrix sandwich panel.
Claims (3)
1. the mould of a fiber reinforced composite dot matrix core board; Said mould comprises a plurality of mold monomers (1) and two fixed strips (2); It is characterized in that: the cross section of each mold monomers (1) is non-isosceles trapezoid; Have on the inclined-plane of each mold monomers (1) and many first semi-circular through hole (1-1) and first semi-circular through hole (1-1) are connected with the upper and lower surfaces of mold monomers (1); Every pair first semi-circular through hole (1-1) is the splayed setting; Many center lines to first semi-circular through hole (1-1) all equate with horizontal angle; Have second semi-circular through hole (1-2) with every pair first semi-circular through hole (1-1) corresponding position on another inclined-plane of each mold monomers (1); The plane and the transverse cross-section parallel setting of mold monomers (1) that the center line of second semi-circular through hole (1-2) and the line of symmetry of corresponding a pair of first semi-circular through hole (1-1) constitute, the alternate positively and invertedly tiling of a plurality of mold monomers (1) is provided with the formation tabular, how many to first manhole (1-1-1) to first semi-circular through hole (1-1) formation on adjacent two mold monomers (1); A plurality of second semi-circular through hole (1-2) on adjacent two mold monomers (1) form a plurality of second manholes (1-2-1); First manhole (1-1-1) is identical with the diameter of second manhole (1-2-1), and a plurality of mold monomers (1) are arranged between two fixed strips (2), and the material of mold monomers (1) is a silicon rubber.
2. the mould of fiber reinforced composite dot matrix core board according to claim 1; It is characterized in that: said mould comprises that also a plurality of cross sections are circular hard metal bar (3); The center that each mold monomers (1) goes up along its length has the 3rd manhole (1-3), is fixed with the hard metal bar (3) of a circle in the 3rd manhole (1-3) on each mold monomers (1).
3. one kind is utilized the mould of claim 1 or 2 to prepare the fiber reinforced composite dot matrix core board wet processing, and it is following to it is characterized in that preparing fiber reinforced composite dot matrix core board wet processing step:
Step 1, mould are handled: with acetone soln cleaning die surface, handle the outer surface of mould then with releasing agent;
Step 2, fixed mould: mould is fixed with anchor clamps;
Step 3, roll fibre columns: roll fibre columns with prepreg; The maintenance machine direction is axially identical with fibre columns; The diameter of the fibre columns that rolls is identical with the diameter of first manhole (1-1-1) and second manhole (1-2-1); The quantity of the fibre columns that rolls is the quantity of first manhole (1-1-1) and the quantity sum of second manhole (1-2-1); The length of the fibre columns that rolls is than the long 40～50mm of length of first manhole (1-1-1) and second manhole (1-2-1); Then the fibre columns that rolls is filled in corresponding first manhole (1-1-1) and second manhole (1-2-1), each 20～25mm of upper and lower surfaces of mould is all exposed at the fibre columns two ends that each rolls;
Step 4, lay down fibre prepreg: at the upper and lower surfaces lay down fibre prepreg of mould; The fibre columns of in process of deployment, the mould upper and lower surfaces being exposed is rived to both sides along the fibre columns length direction; The fibre columns of riving is embedded in the prepreg of mould upper and lower surfaces, forms the fiber reinforced composite dot matrix core board base;
Step 5, products solidifying: fiber reinforced composite dot matrix core board base and mould are placed on heating cure on the hydraulic press; The top and bottom of fiber prepreg and the pressure surface up and down of hydraulic press are fully contacted; Solidification temperature is 130～140 ℃, and pressure hold time is 2.5～3.5 hours;
Step 6, the demoulding: pull down anchor clamps, then each mold monomers (1) is extracted out along its length, promptly make fiber reinforced composite dot matrix core board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103091533A CN101708659B (en) | 2009-10-30 | 2009-10-30 | Mold for fiber reinforced composite dot matrix core board and wet method preparation process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103091533A CN101708659B (en) | 2009-10-30 | 2009-10-30 | Mold for fiber reinforced composite dot matrix core board and wet method preparation process |
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| Publication Number | Publication Date |
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| CN101708659A CN101708659A (en) | 2010-05-19 |
| CN101708659B true CN101708659B (en) | 2012-01-25 |
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| CN2009103091533A Expired - Fee Related CN101708659B (en) | 2009-10-30 | 2009-10-30 | Mold for fiber reinforced composite dot matrix core board and wet method preparation process |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890813B (en) * | 2010-07-08 | 2012-08-29 | 哈尔滨工业大学 | Preparation method of hollow circular-tube tetrahedral full-composite lattice sandwich board |
| CN101890814B (en) * | 2010-07-08 | 2014-01-22 | 哈尔滨工业大学 | Preparation method of hollow round tube pyramid type completely composite material lattice laminboard |
| CN101966763B (en) * | 2010-09-09 | 2012-12-12 | 哈尔滨工业大学 | Fiber composite lattice sandwich plate, mould for manufacturing same and method for manufacturing same by mould |
| CN101973129B (en) * | 2010-10-28 | 2013-03-13 | 哈尔滨工业大学 | Method for manufacturing composite material dot matrix laminboard by adopting fiber woven prepreg cloth |
| CN102275314A (en) * | 2011-08-04 | 2011-12-14 | 哈尔滨工业大学 | Method for enhancing energy absorption and vibration attenuation functions of dot matrix coreboard |
| CN109808197B (en) * | 2019-01-30 | 2023-06-27 | 江苏集萃先进高分子材料研究所有限公司 | Continuous fiber reinforced thermoplastic composite material forming device |
| CN110053109B (en) * | 2019-05-22 | 2021-02-05 | 长春工业大学 | Composite material 3D-Kagome lattice structure and integrated preparation method thereof |
| CN110183720B (en) * | 2019-06-05 | 2022-06-28 | 天津工业大学 | Shaddock peel-like structure composite foam material and preparation method thereof |
| CN111844803B (en) * | 2020-06-29 | 2021-08-31 | 华中科技大学 | Forming die and method for fiber-reinforced X-shaped core sandwich board |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239490A (en) * | 2008-03-19 | 2008-08-13 | 哈尔滨工业大学 | Combined mould for preparing fibre reinforcement pyramid shape dot matrix sandwich board |
| CN101693409A (en) * | 2009-10-30 | 2010-04-14 | 哈尔滨工业大学 | Dry preparation process of fibre reinforced composite tetrahedral lattice batten board |
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- 2009-10-30 CN CN2009103091533A patent/CN101708659B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239490A (en) * | 2008-03-19 | 2008-08-13 | 哈尔滨工业大学 | Combined mould for preparing fibre reinforcement pyramid shape dot matrix sandwich board |
| CN101693409A (en) * | 2009-10-30 | 2010-04-14 | 哈尔滨工业大学 | Dry preparation process of fibre reinforced composite tetrahedral lattice batten board |
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| CN101708659A (en) | 2010-05-19 |
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